Improvement in governors for gas-exhausters



R. KUCH.

Governors for Gas Exhausters, &c.

N0. 137,215. PatentedMarch 25,1873.

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- {ICHARD KOCH, OF NEW YORK, N. Y.

IMPROVEMENT IN GOVERNORS FOR GASEXHAUSTERS, &c.

Specification forming part of Letters Patent No. 137,4215, dated Marsh 25, 1873.

To all 'whom it may concern:

Be it known that I, RICHARD KOCH, of the city, county, and State of New York, have invented a new and Improved Governor for Gas- Exhausters; and I do hereby declare the following to be a full, clear, and exact description thereof, which will enable those skilled in the art to make and use the same, reference being Similar letters indicate corresponding parts. I

This invention relates to a governor, the action of which is based upon a bellows-valve,

from the interior of which extends a pipe to the hydraulic main of a gas-house, while its head-plate is connected to the throttle-valve y of the steam-engine that serves to impart motion to a gas-exhauster in such a manner that when the pressure of the gas in the hydraulic main rises, and consequently the duty of the l exhauster increases, the throttle-valve of the engine is raised, and, consequently, the power and speed of the engine and of the exhauster are increased, and vice versa. The rod which rises from the head-plate of the bellows-valve,

. and which connects with a lever that acts on the throttle-valve, is made in the form of a springfork in such a manner that when the motion of the gas-exhauster stops, either by the breaking of the belt connecting it with the engine or from some other cause, while the production of gas is going on, the throttle-lever will be automatically disengaged and the throttle-valve will close, thereby preventing the engine from racing. With said springfork is combined an alarm-lever, so that whenever the throttle-lever is disengaged from said fork the alarm-lever starts an alarm situated in any convenient part of the building, and thereby the attention of the superintendent, or of the person "having charge of the gasworks, is called to the fact that the operation of the gas-exhauster has been interrupted.

In the drawing,lthe letter A designates a bellows-valve, constructed of a series of rings which are united by a piece of oilsilk or other flexible material capable of withstanding the e'ect of gas or other uid that may pass through said valve. The upper ring of my valve is provided with a rigid head, B, while its lowest ring is provided with a ange that serves to securethe same upon the bedplate C. YThrough this bed-plate extends a pipe, D, which connects with the gas-main. The valve A is .covered by a jacket or hood, E, and from the head B of said valve rises a rod, F, which extends through a hole, a, in the head of the hood E. Said rod is provided with two jaws, b b, which'turn on a pivot, c, secured in the body of the rod, and the lower ends of the shanks of said jaws are exposed to the action of springs d d, (see Fig-2,) that have a tendency to keep the jaws closed. Said jaws engage with cavities in the sides of a lever, G, that swings on a pivot, e, and connects with the throttle-valve of the engine that imparts motion to the gas-exhauster, the connection between the throttle-valve and the lever being such that when the head of the b ellows-valve rises the throttle-valvelis op en ed, and vice versa. If the pressure of the gas in the hydraulic main increases the head of the bellows-valve is forced up, the throttle-valve A of the engine is opened, and the speed of the exhauster is increased, and vice versa. The lower ends of the shanks of the jaws b b are curved outward, as shown in Fig. 2, and if the connection of the exhauster with the engine is interrupted by the breakage of a belt, or if the exhauster ceases to act from some cause, so that the pressure of the gas in the hydraulic main increases, then the head of the bellows` valve rises to such a point that the curved ends of the shanks of the jaws are forced up into the hole a in the head ot' the jacket or hood, and thereby the jaws b b are opened, and the throttle-lever is allowed to drop down tothe position shown in dotted lines in Fig. 1. By this motion of the throttle-lever the throttlevalve is closed automatically and the engine is prevented from racing. From the rod F projects a pin, f, Fig. 1, and the hole a in the head of the jacket is provided with au extension, g, over which is situated a lever, h, that connects with an alarm, of any suitable construction, which is placed in the office of the superintendent, or in any convenient place in the gas-house. When the rod F rises so as to disengage the throttle-lever, the pin f strikes the alarm-1ever h, and the alarm is sounded, thereby calling the attention of the person in charge to the fact that the operation of the eXhauster has been disturbed.

What I claim as new, and desire to secure by Letters Patent, is-

1. The rod F, constructed with two springjaws, b b, the Shanks of which are curved at their lower ends, in combination with a bellows-Valve, A, a hood or crossbar, E, and with the throttle-lever G, the whole constructed and operating substantially in the manner set forth.

2. The rod F provided with the pin f and the bellows-valve A, in combination with a suitable alarm, substantially as and for the purpose described.

This specification signed by me this 13th day of January, 1873.

RICHARD KOCH.

Witnesses W. HAUFF, E. F. KASTENHUBER. 

